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## org.apache.axis.message
Class NullAttributes

    java.lang.Object
      org.apache.axis.message.NullAttributes

All Implemented Interfaces:
  Attributes

public class NullAttributes
extends Object
implements Attributes

Null implementation of the Attributes interface.

Author:
  David Megginson, Sam Ruby

Field Summary
`static NullAttributes` | `singleton`

Constructor Summary
`NullAttributes()`

Method Summary
`int` | `getIndex(String qName)` Look up an attribute's index by qualified (prefixed) name.
`int` | `getIndex(String uri, String localName)` Look up an attribute's index by Namespace name.
`int` | `getLength()` Return the number of attributes in the list.
`String` | `getLocalName(int index)` Return an attribute's local name.
`String` | `getQName(int index)` Return an attribute's qualified (prefixed) name.
`String` | `getType(int index)` Return an attribute's type by index.
`String` | `getType(String qName)` Look up an attribute's type by qualified (prefixed) name.
`String` | `getType(String uri, String localName)` Look up an attribute's type by Namespace-qualified name.
`String` | `getURI(int index)` Return an attribute's Namespace URI.
`String` | `getValue(int index)` Return an attribute's value by index.
`String` | `getValue(String qName)` Look up an attribute's value by qualified (prefixed) name.
`String` | `getValue(String uri, String localName)` Look up an attribute's value by Namespace-qualified name.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

### singleton

    public static final NullAttributes singleton

Constructor Detail

### NullAttributes

    public NullAttributes()

Method Detail

### getLength

    public int getLength()

  Return the number of attributes in the list.

  Specified by:
    `getLength` in interface `Attributes`
  Returns:
    The number of attributes in the list.
  See Also:
    `Attributes.getLength()`

### getURI

    public String getURI(int index)

  Return an attribute's Namespace URI.

  Specified by:
    `getURI` in interface `Attributes`
  Parameters:
    `index` - The attribute's index (zero-based).
  Returns:
    The Namespace URI, the empty string if none is available, or null if the index is out of range.
  See Also:
    `Attributes.getURI(int)`

### getLocalName

    public String getLocalName(int index)

  Return an attribute's local name.

  Specified by:
    `getLocalName` in interface `Attributes`
  Parameters:
    `index` - The attribute's index (zero-based).
  Returns:
    The attribute's local name, the empty string if none is available, or null if the index if out of range.
  See Also:
    `Attributes.getLocalName(int)`

### getQName

    public String getQName(int index)

  Return an attribute's qualified (prefixed) name.

  Specified by:
    `getQName` in interface `Attributes`
  Parameters:
    `index` - The attribute's index (zero-based).
  Returns:
    The attribute's qualified name, the empty string if none is available, or null if the index is out of bounds.
  See Also:
    `Attributes.getQName(int)`

### getType

    public String getType(int index)

  Return an attribute's type by index.

  Specified by:
    `getType` in interface `Attributes`
  Parameters:
    `index` - The attribute's index (zero-based).
  Returns:
    The attribute's type, "CDATA" if the type is unknown, or null if the index is out of bounds.
  See Also:
    `Attributes.getType(int)`

### getValue

    public String getValue(int index)

  Return an attribute's value by index.

  Specified by:
    `getValue` in interface `Attributes`
  Parameters:
    `index` - The attribute's index (zero-based).
  Returns:
    The attribute's value or null if the index is out of bounds.
  See Also:
    `Attributes.getValue(int)`

### getIndex

    public int getIndex(String uri,
                        String localName)

  Look up an attribute's index by Namespace name.

  In many cases, it will be more efficient to look up the name once and use the index query methods rather than using the name query methods repeatedly.

  Specified by:
    `getIndex` in interface `Attributes`
  Parameters:
    `uri` - The attribute's Namespace URI, or the empty string if none is available.
    `localName` - The attribute's local name.
  Returns:
    The attribute's index, or -1 if none matches.
  See Also:
    `Attributes.getIndex(java.lang.String,java.lang.String)`

### getIndex

    public int getIndex(String qName)

  Look up an attribute's index by qualified (prefixed) name.

  Specified by:
    `getIndex` in interface `Attributes`
  Parameters:
    `qName` - The qualified name.
  Returns:
    The attribute's index, or -1 if none matches.
  See Also:
    `Attributes.getIndex(java.lang.String)`

### getType

    public String getType(String uri,
                          String localName)

  Look up an attribute's type by Namespace-qualified name.

  Specified by:
    `getType` in interface `Attributes`
  Parameters:
    `uri` - The Namespace URI, or the empty string for a name with no explicit Namespace URI.
    `localName` - The local name.
  Returns:
    The attribute's type, or null if there is no matching attribute.
  See Also:
    `Attributes.getType(java.lang.String,java.lang.String)`

### getType

    public String getType(String qName)

  Look up an attribute's type by qualified (prefixed) name.

  Specified by:
    `getType` in interface `Attributes`
  Parameters:
    `qName` - The qualified name.
  Returns:
    The attribute's type, or null if there is no matching attribute.
  See Also:
    `Attributes.getType(java.lang.String)`

### getValue

    public String getValue(String uri,
                           String localName)

  Look up an attribute's value by Namespace-qualified name.

  Specified by:
    `getValue` in interface `Attributes`
  Parameters:
    `uri` - The Namespace URI, or the empty string for a name with no explicit Namespace URI.
    `localName` - The local name.
  Returns:
    The attribute's value, or null if there is no matching attribute.
  See Also:
    `Attributes.getValue(java.lang.String,java.lang.String)`

### getValue

    public String getValue(String qName)

  Look up an attribute's value by qualified (prefixed) name.

  Specified by:
    `getValue` in interface `Attributes`
  Parameters:
    `qName` - The qualified name.
  Returns:
    The attribute's value, or null if there is no matching attribute.
  See Also:
    `Attributes.getValue(java.lang.String)`

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